The present disclosure provides electronic devices that effectively utilize multiple ports. A first input switch is provided between a first port and an input of a first switching converter. A second input switch is provided between a second port and an input of a second switching converter. A load is connected to an output of the first switching converter. A first load switch is provided between the output of the first switching converter and a battery, and a second load switch is provided between an output of the second switching converter and the battery.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An electronic device, comprising: a first port; a second port; a first switching converter, having an output connecting to a load; a second switching converter; a first input switch provided between the first port and an input of the first switching converter; a second input switch provided between the second port and an input of the second switching converter; a first load switch provided between the output of the first switching converter and a battery; a second load switch provided between an output of the second switching converter and the battery; a first controller, configured to control the first switching converter, the first input switch, and the first load switch; and a second controller, configured to control the second switching converter, the second input switch, and the second load switch, wherein the first load switch, the second load switch and the battery are connected at the same node.
2. The electronic device of claim 1 , wherein when the second port is connected to a power supply device, then the second input switch, the second load switch, and the first load switch are on, thereby enabling a selection for an operation mode of the second switching converter.
3. The electronic device of claim 1 , wherein when the first port is connected to a power supply device and the second port is connected to a power receiving device, then the first input switch, the second input switch, the first load switch, and the second load switch are on, thereby enabling a selection for an operation mode of the first switching converter and the second switching converter.
4. The electronic device of claim 1 , wherein when the first port is connected to a power receiving device and the second port is connected to a power supply device, then the first input switch, the second input switch, the first load switch, and the second load switch are on, thereby enabling a selection for an operation mode of the first switching converter and the second controller.
5. The electronic device of claim 1 , wherein when the first port is connected to a power supply device and the second port is connected to a power supply device, then the first input switch, the second input switch, the first load switch, and the second load switch are on, thereby enabling a selection for an operation mode of the first switching converter and the second controller.
6. The electronic device of claim 1 , wherein when the first port is connected to a power receiving device and the second port is connected to a power receiving device, then the first input switch, the second input switch, the first load switch, and the second load switch are on, thereby enabling a selection for an operation mode of the first switching converter and the second controller.
7. The electronic device of claim 1 , further comprising: a third input switch provided between the input of the first switching converter and the input of the second switching converter; and a fourth input switch provided in parallel with the third input switch and between the input of the first switching converter and the input of the second switching converter; wherein the first controller further controls the third input switch, and the second controller further controls the fourth input switch.
8. The electronic device of claim 7 , wherein when the first port is connected to a power supply device, then the first input switch, the first load switch, and the second load switch are on, and at least one of the third input switch and the fourth input switch is on, thereby enabling a selection for an operation mode of the first switching converter and the second controller.
9. The electronic device of claim 7 , wherein when the second port is connected to a power supply device, then the second input switch, the first load switch, and the second load switch are on, and at least one of the third input switch and the fourth input switch is on, thereby enabling a selection for an operation mode of the first switching converter and the second controller.
10. The electronic device of claim 7 , wherein when the second port is connected to a power supply device, then the second input switch and the first load switch are on, and at least one of the third input switch and the fourth input switch is on, thereby enabling a selection for an operation mode of the first switching converter.
11. The electronic device of claim 1 , wherein the first switching converter and the second switching converter are buck-boost converters.
12. The electronic device of claim 1 , wherein the first port and the second port support the USB-PD specification.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
July 25, 2018
January 19, 2021
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